Question

A white solid X reacts with dil. HCl to give colourless gas which is used in fire extinguishers. The solid X is

• A. NaCl
• B. $CH_{3}COONa$
• C. $Na_{2}CO_{3}$
• D. $NaHCO_{3}$

Answer 1

Answer: (D)

$NaHCO_{3}$

Answer 2

: $NaHCO_{3} + HCl \rightarrow NaCl + H_{2}O + CO_{2}$